Phase-matching optimization of large-scale nonlinear frequency upconversion in neutral and ionized gases

被引：33

作者：

Shkolnikov, PL ^{[1
]}

Kaplan, AE ^{[1
]}

Lago, A ^{[1
]}

机构：

[1] UNIV FED SANTA CATARINA,DEPT ENGN MECAN,BR-88040900 FLORIANOPOLIS,SC,BRAZIL

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 1996年 / 13卷 / 02期

关键词：

D O I：

10.1364/JOSAB.13.000412

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We suggest and discuss two techniques that could radically improve the efficiency of large-scale nonlinear frequency upconversion: quasi-phase matching of high-order harmonic generation in density-modulated media and high-order difference-frequency mixing in plasma. We demonstrate theoretically that both techniques permit optimal phase matching with tight focusing of pump beams, which is detrimental to current approaches to frequency upconversion, with a potentially drastic increase in conversion efficiency. Optimal phase-matching conditions that we obtained in the perturbation limit are shown to be likely to hold for strong pumping fields as well. (C) 1996 Optical Society of America

引用

页码：412 / 423

页数：12

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